This paper explains how to use the Java Authentication and Authorization API (JAAS). It plugs JAAS into the Struts framework. Though this paper focuses on Struts, and in particular the example ...

You should familiarize yourself with a few different configurations that involve user authentication of traffic through the security appliance but also administrative access to the security appliance.

Authenticating users who log onto your network by account name and password only is the simplest and cheapest (and thus still the most popular) means of authentication. However, companies are ...